John Harper

John Harper may refer to:

Arts and entertainment

 * John Harper (actor) (died 1742), English comic actor
 * John Harper (architect) (1809–1842), English architect
 * John Russell Harper (1914–1983), Canadian art historian
 * John Harper (church musician) (fl. 1998–2007), former director of the Royal School of Church Music
 * Johnny Harper, fictional character in The O.C.

Politicians

 * John Adams Harper (1779–1816), American politician from New Hampshire
 * John Harper (mayor) (1825–1874), mayor of Denver, Colorado, U.S.A, 1871–1872
 * John Harper (Kentucky politician) (1930–2001), American politician from Kentucky
 * John Joseph Harper (1951–1988), Canadian aboriginal leader from Wasagamack, Manitoba

Others

 * John Ernest Harper (1874–1949), British admiral
 * John Harper (administrator) (1851–1932), railways commissioner in New South Wales
 * John Harper (baseball) (fl. 1920s), Negro league baseball player
 * John Harper (computer engineer) (born 1937), led the Bombe rebuild at Bletchley Park
 * John Harper (footballer) (born 1883), Scottish footballer
 * John Harper (gridiron football), Canadian football player
 * John Harper (pastor) (1872–1912), British Baptist pastor who died on the Titanic
 * John D. Harper (1910–1985), Industrialist and civic leader
 * John L. Harper (1925–2009), British biologist
 * John William Harper (1916–1944), English recipient of the Victoria Cross